Bracket, thrombelastography device, and support system

ABSTRACT

A bracket, a thrombelastography device, and a support system are disclosed. The bracket comprises: a fixed support part ( 101 ), a movable support part ( 102 ), and a connection part ( 103 ). The connection part comprises a first fixing connection member ( 1031 ) and a second fixing connection member ( 1032 ). The first fixing connection member is fixedly connected to the fixed support part; the second fixing connection member is fixedly connected to the movable support part; the first fixing connection member is connected to the second fixing connection member in point contact fashion, such that the first fixing connection member and the second fixing connection member can rotate relative to each other; the movable support part is fixedly connected to a supported object; when driven by the supported object, the movable support part rotates relative to the fixed support part by means of the point contact between the first fixing connection member and the second fixing connection member. The thrombelastography device comprises a rotational shaft and a bracket. The rotational resistance to the supported object when it rotates can be reduced.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. application Ser. No.17/006,523 filed Aug. 28, 2020, which is a continuation of U.S.application Ser. No. 16/096,981 filed Oct. 26, 2018, now U.S. Pat. No.10,761,082, which is a national stage entry of International ApplicationNo. PCT/CN2017/082783 filed May 2, 2017, which claims the benefit of CN201610278391.2 filed Apr. 29, 2016 and CN 201620380641.9 filed Apr. 29,2016, the full disclosures of each which are incorporated by referenceherein in their entirety.

TECHNICAL FIELD

The present invention relates to the technical field of measurement, andin particular, to a bracket, a thrombelastography device, and a supportsystem.

BACKGROUND

A thrombelastography device is an apparatus which is configured tomeasure blood coagulation in vitro and comprises a rotational shaft thatis rotatable. When blood is measured, the rotational shaft is insertedinto the blood and rotates as the blood rotates. The blood coagulationdata of blood is calculated according to the angular displacement of therotational shaft.

SUMMARY

The present invention provides a bracket, a thrombelastography device,and a support system, which can reduce the rotational resistanceencountered when a supported object rotates.

According to an aspect of the present invention, there is provided abracket, which comprises: a fixed support part, a movable support part,and a connection part; wherein

-   -   the connection part comprises a first fixing connection member        and a second fixing connection member;    -   the first fixing connection member is fixedly connected to the        fixed support part;    -   the second fixing connection member is fixedly connected to the        movable support part;    -   the first fixing connection member is connected to the second        fixing connection member in point contact fashion, such that the        first fixing connection member and the second fixing connection        member can rotate relative to each other;    -   the movable support part is fixedly connected to a supported        object supported by the bracket; and    -   when driven by the supported object, the movable support part        rotates relative to the fixed support part by means of the point        contact between the first fixing connection member and the        second fixing connection member.

According to another aspect of the present invention, there is provideda thrombelastography device, which comprises a rotational shaft and thebracket as described above, wherein

-   -   the rotational shaft which serves as the supported object is        fixedly connected to the movable support part in the bracket;        and    -   the rotational shaft can drive, under a driving force of        measured blood, the movable support part to rotate.

According to yet another aspect of the present invention, there isprovided a support system, which comprises a supported object and thebracket described above, wherein

-   -   the supported object is fixedly connected to the movable support        part in the bracket, and can drive, under an external driving        force, the movable support part to rotate.

Embodiments of the present invention provide a bracket, athrombelastography device, and a support system. The fixed support partsupports the movable support part and the supported object by means ofthe connection part, and the first fixing connection member and thesecond fixing connection member in the connection part are connectedtogether in point contact fashion, such that the first fixing connectionmember and the second fixing connection member can rotate relative toeach other. The supported object fixedly connected to the movablesupport part, which is stress, can drive the movable support part torotate around the contact point between the first fixing connectionmember and the second fixing connection member. Since the first fixingconnection member and the second fixing connection member are connectedtogether in point contact fashion, when the movable support part rotatesrelative to the fixed support part, only one contact point generates africtional force to impede the rotation of the movable support part.Therefore, compared with the prior art in which the frictional force isgenerated in the presence of a plurality of contact points or contactsurfaces, the frictional force generated on the bracket may be reduced,and the rotational resistance encountered when the supported objectrotates is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate the embodiments of the present invention or thetechnical solutions in the prior art more clearly, the drawings used inthe embodiments or the prior art description will be briefly describedbelow. Apparently, the drawings in the following description are someembodiments of the present invention. For those of ordinary skill in theart, other drawings may also be obtained according to these drawings,without paying creative work.

FIG. 1 is a schematic diagram of a bracket provided by an embodiment ofthe present invention;

FIG. 2 is a schematic diagram of a connection part provided by anembodiment of the present invention;

FIG. 3 is a schematic diagram of a bracket in which a jewel bearing isfixedly connected to the fixed support part as provided by an embodimentof the present invention;

FIG. 4 is a schematic diagram of a bracket in which a jewel bearing isfixedly connected to a movable support part as provided by an embodimentof the present invention;

FIG. 5 is a schematic diagram of a bracket comprising magnets asprovided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of a bracket comprising a U-shaped fixedsupport part as provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a bracket comprising a

-shaped fixed support part as provided by an embodiment of the presentinvention;

FIG. 8 is a schematic diagram of a thrombelastography device provided byan embodiment of the present invention;

FIG. 9 is a schematic diagram of a thrombelastography device provided byanother embodiment of the present invention;

FIG. 10 is a schematic diagram of a thrombelastography device comprisingan annular magnet as provided by an embodiment of the present invention;

FIG. 11 is a schematic diagram of a thrombelastography device comprisinga lifting mechanism as provided by an embodiment of the presentinvention;

FIG. 12 is a flowchart of a use method for a thrombelastography deviceas provided by an embodiment of the present invention; and

FIG. 13 is a schematic diagram of a support system provided by anembodiment of the present invention.

DETAILED DESCRIPTION

In order to make the objective, the technical solution and theadvantages of the embodiments of the present invention clearer, thetechnical solutions in the embodiments of the present invention areclearly and completely described below with reference to theaccompanying drawings in the embodiments of the present invention. It isapparent that the described embodiments are part of the embodiments ofthe present invention, rather than all of the embodiments. All otherembodiments obtained by those of ordinary skill in the art based on theembodiments of the present invention without paying creative work shouldfall within the protection scope of the present invention.

As shown in FIG. 1 , an embodiment of the present invention provides abracket. The bracket comprises a fixed support part 101, a movablesupport part 102, and a connection part 103, wherein

-   -   the connection part 3 comprises a first fixing connection member        1031 and a second fixing connection member 1032;    -   the first fixing connection member 1031 is fixedly connected to        the fixed support part 101;    -   the second fixing connection member 1032 is fixedly connected to        the movable support part 102;    -   the first fixing connection member 1031 is connected to the        second fixing connection member 1032 in point contact fashion;        such that the first fixing connection member and the second        fixing connection member can rotate relative to each other;    -   the movable support part 102 is fixedly connected to a supported        object; and    -   when driven by the supported object, the movable support part        102 can rotate relative to the fixed support part 101 by means        of the point contact between the first fixing connection member        1031 and the second fixing connection member 1032.

The embodiment of the present invention provides a bracket. The fixedsupport part supports the movable support part and the supported objectby means of the connection part, and the first fixing connection memberand the second fixing connection member in the connection part areconnected together in point contact fashion, such that the first fixingconnection member and the second fixing connection member can rotaterelative to each other. The supported object fixedly connected to themovable support part, which is stress, can drive the movable supportpart to rotate around the contact point between the first fixingconnection member and the second fixing connection member. Since thefirst fixing connection member and the second fixing connection memberin the connection part are connected in point contact fashion, when themovable support part rotates relative to the fixed support part, onlyone contact point generates a frictional force to impede the rotation ofthe movable support part. Therefore, compared with the prior art inwhich the frictional force is generated in the presence of a pluralityof contact points or contact surfaces, the frictional force generated onthe bracket may be reduced, and the rotational resistance encounteredwhen the supported object rotates is reduced.

In an embodiment provided by the present invention, the point connectionmay be in a manner that two contact components are not in full contactand the contact area is less than a predetermined value. For example,when the first fixing connection member and the second fixing connectionmember are connected together in point contact fashion, the contact areais less than 1 square millimeter.

In an embodiment of the present invention, the first fixing connectionmember is a bearing and the second fixing connection member is of atapered structure; or the first fixing connection member is of a taperedstructure, and the second fixing connection member is a bearing, whereinthe bearing is provided with a tapered groove, and the tip of thetapered structure is located in the tapered groove and is in contactwith the bottom of the tapered groove, such that the tapered structureis connected to the bearing in point contact fashion, and therefore thefirst fixing connection member and the second fixing connection membercan rotate relative to each other. The bearing is made of any materialthat is appropriately rigid to reduce the frictional force with thetapered structure, such as gemstones, glass, alloys, metals, or thelike. The size and shape of the bearing are any suitable size and shapethat facilitate connection with the movable support part or fixedsupport part and facilitate the provision of the tapered groove that ismatched with the tapered structure. For example, the bearing has acylindrical shape with a tapered groove on the upper surface, and thediameter of the cylindrical shape and the diameter of the tapered grooveare appropriately larger than the diameter of the bottom of the taperedstructure.

In a further embodiment of the present invention, the first fixingconnection member and the second fixing connection member in theconnection part may be a jewel bearing and a top cone. In an example,the first fixing connection member is the jewel bearing, and the secondfixing connection member is the top cone. In another example, the firstfixing connection member is the top cone, and the second fixingconnection member is the jewel bearing. As shown in FIG. 2 , the jewelbearing 201 is of a cake structure. A tapered groove 2011 is formed in aplane of the jewel bearing 201. The top cone 202 may be of a taperedstructure. The tip of the top cone 202 is located in the groove 2011,and only the tip of the top cone 202 is in contact with the bottom ofthe groove 2011, such that the jewel bearing 201 is connected to the topcone 202 in point contact fashion. For example, when the tip of the topcone 202 has an area of 0.8 square millimeter, the top cone is in pointcontact with the tapered groove 2011 of the jewel bearing 201 by meansof this tip having the area of 0.8 square millimeter.

In an embodiment of the present invention, the first fixing connectionmember in the connection part may be a jewel bearing or a top cone. Whenthe first fixing connection member is the jewel bearing, the secondfixing connection member is a top cone. When the first fixing connectionmember is the top cone, the second fixing connection member is the jewelbearing. The structure of the bracket will be described below in thefollowing cases in which the first fixing connection member is the jewelbearing and the first fixing connection member is the top cone,respectively.

In an embodiment of the present invention, as shown in FIG. 3 , thejewel bearing 3031 which serves as the first fixing connection member isfixedly connected to the fixed support part 301, the top cone 3032 whichserves as the second fixing connection member is fixedly connected tothe movable support part 302, and the tip of the top cone 3032 islocated in a groove of the jewel bearing 3031 and is in point contactwith the bottom of the groove in the jewel bearing 3031. The fixedsupport part 301 supports, by means of the jewel bearing 3031, the topcone 3032 and the movable support part 301 which are fixedly connected.

In an embodiment of the present invention, as shown in FIG. 4 , the topcone 4031 which serves as the first fixing connection member is fixedlyconnected to the fixed support part 401, the jewel bearing 4032 whichserves as the second fixing connection member is fixedly connected tothe movable support part 402, and the tip of the top cone 4031 is inpoint contact with the bottom of the jewel bearing 4032. The fixedsupport part 401 supports, by means of the top cone 4031, the jewelbearing 4032 and the movable support part 401 which are fixedlyconnected.

In an embodiment of the present invention, the bracket further comprisesat least a pair of magnets; for each pair of magnets, the first magnetis fixed to one side, close to the movable support part, on the fixedsupport part, and the second magnet is fixed to one side, close to thefixed support part, on the movable support part; and the first magnetand the second magnet are stacked in parallel, and the surfaces, whichare close each other, of the first magnet and the second magnet are thelike magnetic poles. The bracket provided by the embodiment of thepresent invention will be further described below by taking the bracketwhich comprises two pairs of magnets as an example.

In an embodiment of the present invention, as shown in FIG. 5 , thesupport comprises two pairs of magnets. The first pair of magnetsincludes a magnet 5041 and a magnet 5042. The second pair of magnetsincludes a magnet 5051 and a magnet 5052. The magnet 5041 and the magnet5051 are fixed to the fixed support part 501, and the magnet 5042 andthe magnet 5052 are fixed to the movable support part 502. The magnet5041 and the magnet 5042 in the first pair of magnets are stacked inparallel. The surfaces, which are close to each other, of the magnet5041 and the magnet 5042 have magnetic poles which have the samepolarity, for example, the N pole of the magnet 5041 is directed to themovable support part 502, and the N pole of the magnet 5042 is directedto the fixed support part 501; the magnet 5051 and the magnet 5052 inthe second pair of magnets are slacked in parallel; the surfaces, whichare close to each other, of the magnet 5051 and the magnet 5052 havemagnetic poles which have the same polarity, for example, the S pole ofthe magnet 5051 is directed to the movable support part 502, and the Spole of the magnet 5052 is directed to the fixed support part 501.

In an embodiment of the present invention, as shown in FIG. 6 , thefixed support part 601 is of a U-shaped structure. The fixed supportpart 601 which is of the U-shaped structure comprises a crossbeam 6011,a first longitudinal beam 6012 and a second longitudinal beam 6013,wherein the crossbeam 6011 is fixedly connected between the firstlongitudinal beam 6012 and the second longitudinal beam 6013, and isfixedly connected to the first fixing connection member 6031. Themovable support part 602 is fixedly connected to the second fixingconnection member 6032. The first longitudinal beam 6012 and the secondlongitudinal beam 6013 are fixed, by bolts, to a fixed platform 606serving as a support surface, and the fixed platform 606 supports theentire bracket.

In an embodiment of the present invention, as shown in FIG. 7 , thefixed support part 701 is of a

-shaped structure. The fixed support part 701 which is of a

-shaped structure comprises a top crossbeam 7011, a middle crossbeam7012, a first longitudinal beam 7013 and a second longitudinal beam7014, wherein the two crossbeams are fixedly connected between the twolongitudinal beams and a through hole is formed between the twocrossbeams. The movable support part 702 passes through a gap betweenthe top crossbeam 7011 and the middle crossbeam 7012. The middlecrossbeam 7012 is fixedly connected to the first fixing connectionmember 7031. The first fixing connection member is matched with thesecond fixing connection member 7032 fixed on the movable support part702. The middle crossbeam 7012 supports the movable support part 702.The first longitudinal beam 7013 and the second longitudinal beam 7014are fixed, by bolts, to the fixed platform 706 which serves as thesupport surface. The fixed platform 706 supports the entire bracket.

In the embodiment of the present invention, the top crossbeam 7012 isdetachably connected to the first longitudinal beam 7013 and the secondlongitudinal beam 7014 to facilitate the mounting and detachment of themovable support part 702.

In an embodiment of the present invention, as shown in FIGS. 6 and 7 ,wherein the movable support part is of a regular quadrangular framestructure having a through hole in the middle. The first crossbeam onthe movable support part is fixedly connected to the first fixingconnection member. A support crossbeam fixed on the connection partpasses through the through hole in the movable support part which is ofthe frame structure, and the second fixing connection member fixed onthe support crossbeam is matched with the first fixing connectionmember. The second crossbeam on the movable support part, which isopposite to the first crossbeam, is fixedly connected to the externalsupported object. As shown in FIG. 6 , the crossbeam 6011 passes throughthe through hole in the middle of the movable support part 602, and isconnected to the first crossbeam 6021 on the movable support part 602 bymeans of the first fixing connection member 6031 and the second fixingconnection member 6032. As shown in FIG. 7 , the middle crossbeam 7012passes through the through hole in the middle of the movable supportpart 702, and is connected to the first crossbeam 7012 on the movablesupport part 702 by means of the first fixing connection member 6031 andthe second fixing connection member 6032.

As shown in FIG. 8 , an embodiment of the present invention provides athrombelastography device, comprising a rotational shaft 807 and anybracket 801 provided by the embodiments of the present invention,wherein

-   -   the rotational shaft 807 which serves as the supported object is        fixedly connected to the movable support part in the bracket        801; and    -   the rotational shaft 807 can rotate the movable support part to        rotate under the driving force of the measured blood.

In an embodiment of the present invention, as shown in FIG. 9 , athrombelastography device comprises a rotational shaft 907, a fixedplatform 906 and the bracket as shown in FIG. 7 , wherein

-   -   a first fixing connection member 9031 in the bracket is fixed to        a middle crossbeam 9011 of a fixed support part 901, a second        fixing connection member 9032 is fixed to a crossbeam 9021 on        the upper part of a movable support part 902, and the first        fixing connection member 9031 is matched with the second fixing        connection member 9032, such that the fixed support part 901 is        connected to the movable support part 902 in point contact        fashion;    -   a crossbeam 9022 on the lower part of the movable support part        902 is fixedly connected to the rotational shaft 907; and    -   two longitudinal beams 9012 of the fixed support part 901 are        fixed to the fixed platform 906 by means of bolts, and the fixed        platform 906 supports the entire bracket and the rotational        shaft 907.

In an embodiment of the present invention, the first fixing connectionmember 9031 is a jewel bearing, and the second fixing connection member32 is a top cone, wherein the tip of the top cone is located in atapered groove of the jewel bearing, the tip of the top cone is in pointcontact with the bottom of the tapered groove, and the fixed supportpart 901 supports the movable support part 902 and the rotational shaft907 by means of the point contact. It will be understood that the firstfixing connection member may also be made of any other appropriatelyrigid materials, such as glass, alloys, metal, or the like.

In an embodiment of the present invention, the thrombelastography deviceas shown in FIG. 9 may further comprise a pair of annular magnets. Asshown in FIG. 10 , the first annular magnet 10041 in the pair of annularmagnets is fixed on a middle crossbeam 10011 of the fixed support part,and the axis of the first annular magnet 10041 is overlapped with theaxis of the first fixing connection member 10031 (a jewel bearing); thesecond annular magnet 10042 in the pair of annular magnets is fixed onan upper crossbeam 10021 of the movable support part, and the axis ofthe second annular magnet 10042 is overlapped with the axis of thesecond fixing connection member 10032 (a top cone); the magnetic pole ofthe first annular magnet 10041, which is directed to the upper crossbeam10021 of the movable support part and the magnetic pole of the secondannular magnet 10042, which is directed to the middle crossbeam 10011 ofthe fixed support part are like magnetic poles. For example, under apositional state shown in FIG. 10 , the upward direction of the firstannular magnet 10041 is the N pole, and the downward direction of thesecond annular magnet 10042 is the N pole.

In an embodiment of the present invention, as shown in FIG. 11 , thethrombelastography device may further comprise a lifting mechanism 1108which is connected to the fixed platform 1106. The fixed platform 1106may ascend or descend by means of the lifting mechanism 1108, therebydriving the bracket and the rotational shaft to ascend or descend andfacilitating putting the rotational shaft in measured blood or takingthe rotational shaft out of the measured blood.

In order to illustrate the structure of the thrombelastography deviceprovided by the embodiment of the present invention more clearly, a usemethod for the thrombelastography device will be described below inconjunction with the thrombelastography device shown in FIG. 9 . Asshown in FIG. 12 , an embodiment of the present invention provides a usemethod for a thrombelastography device, comprising the following steps1201-1204.

Step 1201: placing a rotational shaft in measured blood.

In an embodiment of the present invention, when the blood is measured bythe thrombelastography device shown in FIG. 9 , the measured blood isplaced in a blood container. The blood container is placed below thefixed platform 906. The fixed platform 906 is driven by the liftingmechanism to descend. The rotational shaft 907 extends into the bloodcontainer under the driving of the fixed platform 906, such that therotational shaft 907 is immersed into the measured blood by a specifiedlength.

Step 1202: rotating the measured blood to drive the rotational shaft torotate.

In an embodiment of the present invention, after the lower end of therotational shaft 907 is immersed in the measured blood by a specifiedlength, the blood container is rotated at a certain speed by a rotatingdevice, and the blood container rotates to drive the measured blood torotate. Since the measured blood has a certain viscosity, the measuredblood rotates on the rotational shaft 907 to generate a rotationalmoment, and the rotational shaft 907 rotates under the action of therotating moment. The larger the viscosity of the measured blood, thelarger the rotation angle of the rotational shaft 907.

In an embodiment of the present invention, since the rotational shaft907 is fixedly connected to the movable support part 902, when therotational shaft 907 rotates, the movable support part 902 rotates atthe same angle as the rotational shaft 907 around the contact pointbetween the jewel bearing 9031 and the top cone 9032. The fixed supportpart 901 supports the rotational shaft 907 and the movable support part902 by means of the jewel bearing 9031 and the top cone 9032. Since thejewel bearing 9031 and the top cone 9032 are in single-point contact,the frictional force generated when the jewel bearing 9031 and the topcone 9032 rotate relative to each other is relatively small, therebyreducing the rotational resistance of the bracket to the rotationalshaft 907 when the rotational shaft 907 rotates.

Step 1203: determining an elasticity of the measured blood according tothe rotation angle of the rotational shaft.

In an embodiment of the present invention, the rotation angle of therotational shaft 907 is sensed through various sensors, athrombelastogram is formed according to the rotation angle of therotational shaft, and an index parameter reflecting the elasticity ofthe measured blood is obtained according to the thrombelastogram; or therotation angle of the rotational shaft 907 is directly converted to anindex parameter that reflects the elasticity of the measured blood.

Step 1204: taking the rotational shaft out of the measured blood.

In an embodiment of the present invention, after the elasticity of themeasured blood is acquired, the fixed platform 906 ascends by means ofthe lifting mechanism to drive the fixed support part 901 fixedlyconnected thereto to ascend. Since the fixed support part 901 supportsthe movable support part 902 by means of the jewel bearing 9031 and thetop cone 9032, the fixed support part 901 ascends to drive the movablesupport part 902 to ascend. In addition, since the movable support part902 is fixedly connected to the rotational shaft 907, the movablesupport part 902 ascends to drive the rotational shaft 907 to ascend,such that the rotational shaft 907 is taken out of the blood containerto complete the measurement of the measured blood.

As shown in FIG. 13 , an embodiment of the present invention furtherprovides a support system, which comprises a supported object 1301 andany bracket 1301 provided by the embodiments of the present invention,wherein

-   -   the supported object 1301 is fixedly connected to the movable        support part in the bracket 1302, and the supported object 1301        can drive, under an external driving force, the movable support        part to rotate.

An embodiment of the present invention provides a use method for asupport system, which comprises the following steps:

Step A: accepting, by the supported object; an external driving force;and

Step B: driving, by the supported object under the external drivingforce, the movable support part to rotate.

In the Step B, the supported object is fixedly connected to the movablesupport part, and the fixed support part is connected to the movablesupport part in point contact fashion. The supported object drives,under the external driving force, the movable support part to rotatearound the contact point of the point contact. Since the fixed supportpart supports the movable support part and the supported object only byone contact point, the frictional force generated when the movablesupport portion and the fixed support portion rotate relative to eachother is relatively small, thereby reducing the rotational resistanceencountered when the supported object rotates.

In an embodiment of the present invention, when the rotational shaft isused as one of the supported objects, the support system is thethrombelastography device provided by the above embodiments. When arotational component of the rotational shaft is used as the supportedobject, the support system may be applied to other machines andequipment.

It should be noted that, in the embodiment of the present invention, anytype of bracket can be used in the thrombelastography device, and can ofcourse be used in other devices to complete the supporting functionthereof and reduce the rotational resistance encountered when thesupported object, such as the thrombelastography device rotates.

Various embodiments provided by the present invention have the followingbeneficial effects:

1. in the embodiment of the present invention, the fixed support partsupports the movable support part and the supported object by means ofthe connection part, and the first fixing connection member and thesecond fixing connection member in the connection part are connectedtogether in point contact fashion, such that the supported object whichis stress can drive the movable support part to rotate around thecontact point between the first fixing connection member and the secondfixed connection member. Since the first fixing connection member andthe second fixing connection member are connected together in pointcontact fashion, when the movable support part rotates relative to thefixed support part, only one contact point generates a frictional forceto impede the rotation of the movable support part. Therefore, thefrictional force generated on the bracket may be very small, and furtherthe rotational resistance encountered when the supported object rotatesis reduced.

2. In the embodiment of the present invention, two fixing connectionmembers included in the connection part may be the jewel bearing and thetop cone. The tip of the top cone is located in the tapered groove ofthe jewel bearing, and the tip of the top cone is in point contact withthe bottom of the tapered groove. When the jewel bearing rotatesrelative to the top cone, a less frictional force is generated, suchthat the rotational resistance from the bracket when the supportedobject rotates can be reduced. The sensitivity and the measurementaccuracy of the thrombelastography device may be improved when thebracket is applied to the thrombelastography device.

3. In the embodiment of the present invention, the jewel bearing may befixed either on the fixed support part or on the movable support part,and correspondingly the top cone may be fixed on the movable supportpart or the fixed support part, which may be selected flexibly accordingto structures and functions, thereby improving the applicability of thebracket.

4. In the embodiment of the present invention, the bracket may compriseat least a pair of magnets, wherein one magnet in each pair of magnetsis fixed to the fixed support part, and the other magnet thereof isfixed to the movable support part. The pair of magnets is stacked inparallel, and like magnetic poles are opposite. In this way, accordingto the principle that like poles repel each other, the magnet on thefixed support part applies an upward magnetic force to the magnet on themovable support part. The magnetic force can reduce the pressure of thepoint contact between the first fixing connection member and the secondfixing connection member, and further reduce the frictional forcegenerated by the point contact, thereby further reducing the rotationalresistance encountered when the supported object rotates.

5. In the embodiment of the present invention, the fixed support partmay be of U-shaped structure or a

-shaped structure, which may be selected flexibly as required, therebyimproving the applicability of the bracket. When the

-shaped structure is applied to the thrombelastography device, the topcrossbeam may play a certain role of protecting the movable supportpart, thereby avoiding accidentally contacting the movable support partduring the measurement process, and further improving the reliability ofmeasurement results of the thrombelastography device.

It can be appreciated that, while the relationship terms “first”,“second” and so on may be used herein to distinguish one entity oroperation from another, it does not require or imply such an actualrelation or sequence between these entities or operations. Further, theterms “include”, “comprise” or any variation thereof are intended tocover an nonexclusive containing, such that a process, a method, an itemor a device containing a series of elements not only includes theseelements, but also includes other elements that are not set forthspecifically, or also includes an inherent element of such a process,method, item or device. Without further limitation, an element definedby a phrase “include a” does not mean that other elements are excludedfrom the process, method, item or device.

Aspects of the Invention

The various aspects numbered below further provide the disclosure of thepresent invention.

1. A bracket, comprising: a fixed support part, a movable support part,and a connection part; wherein

-   -   the connection part comprises a first fixing connection member        and a second fixing connection member;    -   the first fixing connection member is fixedly connected to the        fixed support part;    -   the second fixing connection member is fixedly connected to the        movable support part;    -   the first fixing connection member is connected to the second        fixing connection member in point contact fashion, such that the        first fixing connection member and the second fixing connection        member can rotate relative to each other;    -   the movable support part is fixedly connected to a supported        object; and    -   when driven by the supported object, the movable support part        rotates relative to the fixed support part by means of the point        contact between the first fixing connection member and the        second fixing connection member.

2. The bracket according to aspect 1, wherein the first fixingconnection member is a bearing; and the second fixing connection memberis of a tapered structure;

-   -   or    -   the first fixing connection member is of a tapered structure,        and the second fixing connection member is a bearing; wherein    -   the bearing is provided with a tapered groove, and the tip of        the tapered structure is located in the tapered groove, such        that the tapered structure is connected to the bearing in point        contact fashion.

3. The bracket according to aspect 1, wherein

-   -   the first fixing connection member comprises a jewel bearing,        and the second fixing connection member comprises a top cone;    -   or    -   the first fixing connection member comprises a top cone, and the        second fixing connection member comprises a jewel bearing;        wherein    -   the jewel bearing is provided with a tapered groove; the top        cone may be of a tapered structure; the tip of the top cone is        located in the tapered groove on the jewel bearing; and the top        cone is connected to the jewel bearing in point contact fashion.

4. The bracket according to aspect 1, further comprising at least a pairof magnets; wherein

-   -   for each pair of magnets, the first magnet is fixed to one side,        close to the movable support part, on the fixed support part,        and the second magnet is fixed to one side, close to the fixed        support part, on the movable support part; and    -   the first magnet and the second magnet are stacked in parallel,        and two surfaces that are close each other have like magnetic        poles.

5. The bracket according to aspect 1, wherein

-   -   the fixed support part is of a U-shaped structure and comprises        two longitudinal beams and a crossbeam fixedly connected between        the two longitudinal beams; and    -   the crossbeam which is of the U-shaped structure is fixedly        connected to the first fixing connection member.

6. The bracket according to aspect 5, wherein the two longitudinal beamsare fixed to a support surface to support the crossbeam, and support themovable support part by means of the connection part.

7. The bracket according to aspect 1, wherein

-   -   the fixed support part is of a        -shaped structure, and comprises two longitudinal beams and two        crossbeams fixedly connected between the two longitudinal beams,        wherein a through hole is formed between the two crossbeams; and    -   the movable support part passes through the through hole and is        connected to the crossbeam in the middle of the        -shaped structure by means of the connection part.

8. The bracket according to aspect 7, wherein the two longitudinal beamsare fixed to a support surface to support the two crossbeams, andsupport the movable support part by means of the connection part.

9. The bracket according to any one of aspects 1 to 8, wherein

-   -   the movable supporting part is of a regular quadrangular frame        structure having a through hole in the middle, and comprises a        first crossbeam, a second crossbeam, a first longitudinal beam        and a second longitudinal beam, wherein the first crossbeam is        fixedly connected to the second fixing connection member;    -   the fixed support part passes through the through hole in the        movable support part, and is connected to the first crossbeam of        the movable support part by means of the connection part; and    -   the second crossbeam of the movable support part can be fixedly        connected to the supported object.

10. A thrombelastography device, comprising a rotational shaft and thebracket according to any of aspects 1 to 6, wherein

-   -   the rotational shaft which serves as the supported object is        fixedly connected to the movable support part in the bracket:        and    -   the rotational shaft drives the movable support part to rotate        under the driving force of the measured blood.

11. The thrombelastography device according to aspect 10, wherein whenthe fixed support part is of a U-shaped structure or a

-shaped structure, the thrombelastography device further comprises afixed platform, wherein the fixed platform is fixedly connected to thetwo longitudinal beams of the fixed support part.

12. The thrombelastography device according to aspect 11, furthercomprising a lifting mechanism, wherein

-   -   the lifting mechanism is connected to the fixed platform and        drives the fixed platform to ascend or descend.

13. A support system, comprising a supported object and the bracketaccording to any one of aspects 1 to 9, wherein

-   -   the supported object is fixedly connected to the movable support        part in the bracket, and can drive, under an external driving        force, the movable support part to rotate.

14. A use method for a thrombelastography device, wherein thethrombelastography device is the thrombelastography device according toany one of aspects 10 to 12, and the method comprises:

-   -   placing a rotational shaft in measured blood;    -   rotating the measured blood to drive the rotational shaft to        rotate, wherein during rotation, the first fixing connection        member is in point contact with the second fixing connection        member; and    -   determining an elasticity of the measured blood according to the        rotation angle of the rotational shaft.

15. A use method for the support system, wherein the support system isthe support system according to aspect 13, and the method comprises:

-   -   accepting, by the supported object, an external driving force;        and    -   driving, by the supported object under the external driving        force, the movable support part to rotate, wherein during        rotation, the first fixing connection member is in point contact        with the second fixing connection member.

It should be eventually noted that the above contents are only preferredembodiments of the present invention, and used only for describing thetechnical solutions of the present invention, rather than limiting theprotection scope of the present invention. Any modifications, equivalentsubstitutions, improvements, etc. made within the spirit and principleof the present invention should be included within the protection scopeof the present invention.

What is claimed is:
 1. A thromboelastography device, comprising: a fixedsupport part, a movable support part, and a connection part; wherein theconnection part comprises a first fixing connection member and a secondfixing connection member; the first fixing connection member is fixedlyconnected to the fixed support part; the second fixing connection memberis fixedly connected to the movable support part; the first fixingconnection member is connected to the second fixing connection member inan upward point contact fashion of the first fixing connection member onthe second fixing connection member, such that the first fixingconnection member and the second fixing connection member can rotaterelative to each other; the movable support part is fixedly connected toa supported object supported by the thromboelastography device; and whendriven by the supported object, the movable support part rotatesrelative to the fixed support part by means of the upward point contactof the first fixing connection member on the second fixing connectionmember, the upward point contact being the only point contact betweenthe fixed support part and the movable support part.
 2. The deviceaccording to claim 1, wherein the supported object is a rotational shaftwhich is configured to drive the movable support part to rotate underthe driving force of a measured blood.
 3. The device according to claim1, wherein the movable support part is of a regular quadrangular framestructure having a through hole in the middle, and comprises a firstcrossbeam, a second crossbeam, a first longitudinal beam and a secondlongitudinal beam, wherein the first crossbeam is fixedly connected tothe second fixing connection member; the fixed support part passesthrough the through hole in the movable support part, and is connectedto the first crossbeam of the movable support part by means of theconnection part; and the second crossbeam of the movable support part isfixedly connected to the supported object.
 4. The device according toclaim 1, wherein the first fixing connection member is of a taperedstructure that tapers upwardly, the second fixing connection member is abearing with a tapered groove that faces downwardly, and the tip of thetapered structure is located in the tapered groove, such that thetapered structure is connected to the bearing in point contact fashion.5. The device according to claim 1, wherein the second fixing connectionmember comprises a jewel bearing, and the first fixing connection membercomprises a top cone; wherein the jewel bearing is provided with atapered groove, the top cone has a tapered structure, the tip of the topcone is located in the tapered groove on the jewel bearing, and the topcone is connected to the jewel bearing in upward point contact fashion.6. The device according to claim 1, further comprising at least a pairof magnets; wherein for each pair of magnets, the first magnet is fixedto one side, close to the movable support part, on the fixed supportpart, and the second magnet is fixed to one side, close to the fixedsupport part, on the movable support part; and the first magnet and thesecond magnet are stacked in parallel, and two surfaces that are closeeach other have like magnetic poles.
 7. The device according to claim 1,wherein the fixed support part is of a U-shaped structure and comprisestwo longitudinal beams and a crossbeam fixedly connected between the twolongitudinal beams; and the crossbeam is fixedly connected to the firstfixing connection member.
 8. The device according to claim 1, whereinthe two longitudinal beams are fixed to a support surface to support thecrossbeam, and support the movable support part by means of theconnection part.
 9. The device according to claim 1, wherein the fixedsupport part is of a

-shaped structure, and comprises two longitudinal beams and twocrossbeams fixedly connected between the two longitudinal beams, whereina through hole is formed between the two crossbeams; and the movablesupport part passes through the through hole and is connected to thecrossbeam in the middle of the

-shaped structure by means of the connection part.
 10. The deviceaccording to claim 9, wherein the two longitudinal beams are fixed to asupport surface to support the two crossbeams, and support the movablesupport part by means of the connection part.
 11. The device accordingto claim 1, wherein when the fixed support part is of a U-shapedstructure or a

-shaped structure, the thrombelastography device further comprises afixed platform, wherein the fixed platform is fixedly connected to thetwo longitudinal beams of the fixed support part.
 12. The deviceaccording to claim 11, further comprising a lifting mechanism, whereinthe lifting mechanism is connected to the fixed platform and drives thefixed platform to ascend or descend.
 13. The device according to claim3, wherein the fixed support part includes a horizontal crossbeam thatextends through the through hole in the movable support part, and thefirst crossbeam of the movable support part passes through the throughhole in the fixed support part.
 14. The device according to claim 13,wherein the first fixing connection member is fixedly connected to thehorizontal beam of the fixed support part.
 15. The device according toclaim 3, wherein the fixed support part includes a plurality oflongitudinal beams and a horizontal beam with opposite ends that areconnected to the plurality of longitudinal beams, and the horizontalbeam extending through the through hole in the movable support part. 16.The device according to claim 1, wherein the movable support part isconfigured to rotatably hang on the fixed support part through theupward point contact of the first fixing connection member on the secondfixing connection member.